
Insect Activity
It’s time this person calls pest control because they have a serious problem on their hands. After clearing the mystery white powder, it came back. This means something living is causing it to come in the first place.
Thanks to the users of the internet, this strange thing is called “frass,” which is the perforated board that stems from the activity of insects. It’s a serious problem and not something to mess around with any longer (via Everyday Monkey).